Materials Literature
按标题、摘要、年份、主题和来源检索公开元数据。结果保留作者、摘要、分类与原始来源链接。
New environmental benign wood protection agents often come from natural resources, and are sometimes a waste product. Chitosan, a derivative from chitin which is among other sources a by-product from the shellfish industry, is tested as well as known wood protection agents and their synergetic effect with chitosan. Th…
Contact resistance is one of the major factors limiting the performance of future nanoelectronic devices. Although there has been significant progress in graphene based devices since 2004[1, 11, 13, 19, 20], there have been few studies of factors such as metal type, metal workfunction and number of layers in the graph…
X‐ray scattering is a non‐destructive analytical technique capable of detecting electron density fluctuations in mesoporous and nanoporous structures. X‐ray methods have the potential to provide fully quantitative porosity analyses of open and closed pore structures. Specular x‐ray reflectivity (XRR) offers accurate m…
Magnetic losses have been investigated as a function of frequency in non-oriented steel sheets under alternating and rotational flux. Accurate measurements could be performed over a large induction range, extending up to the approach to saturation, by combining the fieldmetric and thermometric loss measuring methods.…
Well-aligned ZnO nanorod array films (ZnO-NAFs) were coatedon common glass substrate by two-step method. A thin buffer layer of ZnO seeds were first deposited via RF magnetron sputtering,the ZnO-NAFS were then grown in a simple aqueous solution. We report a surface-modification induced hydrophilicity to superhydrophob…
Eceng gondok dikenal sebagai gulma air yang pertumbuhannya sulit dikendalikan. Namun, pemanfaatan tanaman ini belum mampu mengimbangi pertumbuhannya yang mencapai 1,9% per hari. Padahal eceng gondok memiliki kandungan serat yang tinggi (mencapai 20% berat) sehingga sangat potensial jika dikembangkan dalam bidang kompo…
Purpose: The aim of this work was to develop a computer program for simulation of dendritic growth in a selected alloy using the phase field model. This model becomes very popular for modelling a variety of technological processes at the mesoscale level. Design/methodology/approach: In the phase field model a new vari…
The use of micropiles has gained widespread attention in many studies and construction works all over the world. Micropiles are small diameter, drilled, cast-in-place grouted piles. They can be used for underpinning works and also in the construction of many newly constructed civil works. The main goal of this paper i…
In this research, we studied the optimization of a segmented-in-series tubular solid oxide fuel cell using La0.5Sr0.5−xCaxMnO3 system materials for the cathode. La0.5Sr0.25Ca0.25MnO3 (LSCM25) was chosen for the cathode to obtain high electric conductivity and prevent the formation of highly resistive second phases wit…
The performance of zirconium alloys in BWR, PWR, and PHWR nuclear reactors is dependent on the microstructure. Accordingly, the characterization of the microstructure is an integral part of any study conducted to develop models for in-reactor performance. Although the as-fabricated microstructure (texture, grain size,…
In this paper an attempt is made to simulate the propagation behaviour of Partial Discharge (PD) acoustic emission (AE) signals in a simple experimental tank. The mathematical model has been developed in the form of partial differential equations (PDEs) for PD acoustic wave propagation in transformer oil and also in a…
We calculate the generalized-stacking-fault (GSF) energy surface of BCC iron by using first principles density functional theory (DFT). We employ the semidiscrete variational Peierls-Nabarro (SVPN) model to investigate the edge dislocation properties of BCC iron. The dislocation core width and Peierls stress are estim…
Abstract Soils contain the largest C pool at the surface of the continents with more than 1500 Gt C (IPCC 2001). Managing soil C has been proposed as a way to reduce the increase of CO 2concentration in the atmosphere. However, choosing the best management option requires an appropriate knowledge of the mechanisms res…
In this work we study the electronic properties of ClO−4 doped polythiophenes and discuss the nonlinear optical properties of these organic compounds galvanostatically electrodeposited on ITO glasses. The investigation on the electronic properties (band gap, flat band potential) was performed by means of a non-destruc…
The electric field strength along the composite insulators should be restricted to maintain at a reasonable range. We adopted the finite element method to calculate the electric field and potential distribution along composite insulators as well as design the grading rings for the 1000 kV UHVAC transmission lines by t…
The fouling characteristics of municipal secondary effluent in plate heat exchangers were investigated in the field. The fouling resistance and flow pressure drop were monitored for various heat pump working conditions. The tests focused on the effects of temperature and velocity on the initial stage of fouling format…
Sintering is an important process in the preparation of solid electrolytes. Milling of the precursor powders generally increases their sinterability, and thus, an effective milling method is important to obtain dense electrolytes. In this study, we demonstrate that planetary bead milling provides nanosize precursor po…
Various nanowire (or nanotube)-based devices have been investigated to fulfill future demands on semiconducting devices, nanoscale electromechanical systems, and biosensors. To fabricate such devices, an electric field-induced assembly method has demonstrated a great potential for one dimensional assembly. In this pap…
This paper presents the results of studies carried out at the Textile Research Institute, Łodź, Poland with the use of original experimental equipment for the generation and application of corona discharge. The construction of this generator was described in our previous paper. It was found that the treatment of polye…
Ziegler-Natta catalyst was prepared from colloidal MgCl 2 (from reaction between magnesium ethyl carbonate and aluminium sesquichloride, Al 2 Et 3 Cl 3 ) followed by contact with TiCl 4 . Al/Mg and Ti/Mg molar ratios were studied as parameters affecting the catalyst synthesis. Catalytic performance and effect of elect…